Low Profile Aluminium Translation Stages 7T167 provide single axis movement. Items are fixed on a platform by M6 and M4 tapped holes. The stages have a central Ø50 mm (2 Inch) clear aperture, which remains unobstructed over some 15 mm of travel. You close the aperture with an insert platform - laid against the resting flange. The insert platform provides additional mounting holes, which you can rotate. It is locked by two fixing screws. Angle brackets 2AB167-50, tie the stages 7T167 in X-Y-Z translation system.